Use P1V1=P2V2
Since you don't know the P2 just plug in all of the known factors:
(3.00L)(1.30atm)= (1.00L)P2
Solve for P2
3.90=1
P2=3.90atm
A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The initial volume was 3.00 L and the initial pressure of chlorine was 1.30atm . The piston was pushed down to change the volume to 1.00 L. Calculate the final pressure of the gas if the temperature and number of moles of chlorine remain constant
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